Mathematics: Using the quadratic formula to solve 2x2 = 4x – 7, what are the values of x?

Using the quadratic formula to solve 2x2 = 4x – 7,

Ответ:

calmicaela12s

27.01.2022

Mathematics

Step-by-step explanation:

Step 1: Subtract 4x from both sides

2x^2 - 4x = 4x - 4x - 7

2x^2 - 4x = -7

Step 2: Add 7 to both sides

2x^2 - 4x + 7 = -7 + 7

2x^2 - 4x + 7 = 0

Step 3: Use the Quadratic Formula

$x = \frac{ -b \pm \sqrt{b^2 -4ac} }{2a}$

$x = \frac{ -(-4) \pm \sqrt{(-4)^2 - 4(2)(7)} }{ 2(2 )}$

$x = \frac{ 4 \pm \sqrt{-40} }{4}$

$x = \frac{4 \pm2i \sqrt{10} }{4}$

$x = \frac{2 \pm i\sqrt{10}}{2}$

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Ответ:

jetjet123123

16.07.2021

Mathematics

Answer

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Using the quadratic formula to solve 2x2 = 4x – 7, what are the values of x?

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